package org.light.utils;

public class RandomUtil {
	public static String getRandomBase62String(int length){
		String pin = "";
	   char [] pinletters = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f','g','h','i','j',
			   				'k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D',
			   				'E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X',
			   				'Y','Z'};

	    pin = "";
	    for(int i=0;i<length;i++)
	    {
	            pin += pinletters[(int)(Math.random()*pinletters.length)];
	    }
	    return pin;
	}

}
